A low temperature freezing chamber

Abstract

The utility model discloses a low temperature freezing room, include: main body structure, the main body structure includes the warehouse room and the warehouse door, and the warehouse door is installed in one side of warehouse room, the goods shelf structure is set up in the inside of warehouse room, and the goods shelf structure is longitudinally equidistance and is set up a plurality of groups in every group of the inner wall of warehouse room, and the goods shelf structure includes fixed base and support plate, and the fixed base is welded in the inner wall of warehouse room, and the support plate is fixed on the fixed base through fixed screw, and the support plate is used for carrying goods, thereby can select support plate group number according to actual need. Through modularization goods shelf structure, flexible adaptation diversification storage demand, and the effective storage volume promotion of modularization goods shelf and three -dimensional heat preservation design makes, is applicable to the scene of hospital, laboratory, commercial super etc. to space sensitive.

Description

Technical Field

[0001] This utility model relates to the field of freezing chamber technology, specifically a low-temperature freezing chamber. Background Technology

[0002] A freezer is a sealed storage space that maintains a low-temperature environment through artificial refrigeration technology. It uses low temperatures to inhibit the growth of microorganisms and enzyme activity, thereby extending the shelf life of items such as food, medicine, or biological samples. It also uses cold air transfer to quickly freeze and keep the stored items solid. Freezers are widely used in household refrigerators, commercial cold storage, medical cold chain, and scientific research low-temperature preservation.

[0003] Traditional freezers offer limited storage options and cannot flexibly adjust storage areas to meet different needs. Large items tend to take up too much space, while small items are often scattered, resulting in low retrieval efficiency and low space utilization.

[0004] Therefore, we need to propose a low-temperature freezing chamber. Utility Model Content

[0005] The purpose of this invention is to provide a low-temperature freezer with modular shelving and three-dimensional insulation design that increases effective storage volume. It is suitable for space-sensitive scenarios such as hospitals, laboratories, and supermarkets, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A low-temperature freezer, comprising:

[0008] The main structure includes a compartment and a door, with the door installed on one side of the compartment;

[0009] The shelving structure is installed inside the warehouse. Multiple sets of shelving structures are arranged longitudinally at equal intervals on each set of inner walls of the warehouse. The shelving structure includes fixed bases and support plates. The fixed bases are welded to the inner walls of the warehouse, and the support plates are fixed to the fixed bases by fixing screws. The support plates are used to support goods, so the number of support plate sets can be selected according to actual needs.

[0010] Preferably, the walls of the compartment include an inner layer, a middle layer and an outer layer from the inside out, with the middle layer located between the inner layer and the outer layer.

[0011] Preferably, the fixing base has a slot on one side for inserting a support plate, the fixing base has a first fixing hole, and the support plate has symmetrically opened second fixing holes. After the support plate is inserted into the slot, the first fixing hole and the second fixing hole are aligned and fixed by fixing screws.

[0012] Preferably, the fixing base is provided with reinforcing blocks on both the upper and lower sides, and the reinforcing blocks are triangular in shape, thereby improving the supporting capacity of the fixing base for the support plate.

[0013] Preferably, a baffle is provided on the side of the support plate away from the fixed seat. The baffle is a transparent baffle to prevent objects placed on the support plate from falling easily.

[0014] Preferably, the lower end of the baffle and the lower side of the outer end of the support plate are rotatably connected together. The baffle is provided with a positioning hole, and the outer end face of the support plate is provided with a threaded hole corresponding to the positioning hole. When the baffle is rotated to fit against the outer end face of the support plate, the positioning hole and the threaded hole are aligned and fixed by screws, so that the baffle can be flipped to facilitate the storage and retrieval of items.

[0015] Preferably, the refrigeration chamber is cooled by a commercial refrigeration unit.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, through its modular shelving structure, flexibly adapts to diverse storage needs. The slot-type connection and screw fixing structure between the fixed base and the support plate allow users to freely increase or decrease the number of support plate layers according to the size of the materials (such as large-volume equipment or small-volume samples), avoiding the space waste or insufficient storage problems caused by traditional fixed shelving. The modular shelving and three-dimensional insulation design increase the effective storage volume, making it suitable for space-sensitive scenarios such as hospitals, laboratories, and supermarkets.

[0018] 2. The slot design of the mounting base ensures that the first and second fixing holes are precisely aligned after the support plate is inserted. Fixing can be completed simply by turning the fixing screws. Compared with traditional shelves that require welding or complex connecting parts, the adjustment efficiency is improved, and temporary storage needs can be responded to quickly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the compartment of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model.

[0022] In the diagram: 1. Compartment; 2. Compartment door; 3. Fixing base; 4. Support plate; 5. Slot; 6. Reinforcing block; 7. First fixing hole; 8. Second fixing hole; 9. Baffle; 10. Positioning hole; 11. Threaded hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution:

[0025] A low-temperature freezer, comprising:

[0026] The main structure includes a compartment 1 and a door 2, with the door 2 installed on one side of the compartment 1;

[0027] The shelving structure is installed inside the storage compartment 1. Multiple sets of shelving structures are longitudinally and equidistantly arranged on each inner wall of storage compartment 1. The shelving structure includes fixed bases 3 and support plates 4. The fixed bases 3 are welded to the inner wall of storage compartment 1, and the support plates 4 are fixed to the fixed bases 3 with screws. The support plates 4 are used to support goods, and the number of sets of support plates 4 can be selected according to actual needs. A slot 5 is provided on one side of the fixed base 3 for inserting the support plates 4. A first fixing hole 7 is provided on the fixed base 3, and a second fixing hole 8 is symmetrically provided on the support plates 4. After the support plates 4 are inserted into the slot 5, the first fixing hole 7 and the second fixing hole 8 are aligned and fixed with screws.

[0028] The mounting bases 3 are longitudinally and equidistantly welded to each set of inner walls of the compartment 1 (including the left, right, and rear inner walls), forming multiple sets of installation references. The support plate 4 is inserted and positioned through the slot 5 of the mounting base 3. After insertion, the first fixing hole 7 of the mounting base 3 is precisely aligned with the second fixing hole 8 of the support plate 4. The fixing screws are then screwed in to complete the fixation, enabling the detachable installation of the support plate 4. The number of installation sets and the spacing of the support plates 4 can be selected according to the size of the materials (such as large-volume food boxes and small-dose reagent bottles). For example, when storing food boxes with a height of 300mm, the support plates 4 are installed with a spacing of 300mm between two sets of mounting bases 3. When storing reagent bottles with a height of 100mm, the support plates 4 are installed on adjacent mounting bases 3 with a spacing of 150mm. By increasing or decreasing the number of support plates 4 and adjusting the installation position, different storage needs can be adapted.

[0029] In summary, this system breaks away from the limitations of traditional fixed shelving with its fixed shelf height. By installing support plates 4 on demand, it enables customized division of storage areas, adapting to various types of materials without requiring separate shelving for individual materials, thus improving adaptability. Fixed bases 3 are arranged on multiple inner walls of storage room 1, making full use of the space around storage room 1 (rather than just one or two sides). Combined with the on-demand installation of support plates 4, it avoids "wasted empty shelves," thereby improving the space utilization rate of storage room 1. The positioning of slots 5 and the fixing with screws allow for the installation and disassembly of support plates 4 without complicated tools, enabling a single person to complete the operation. The adjustment efficiency is greatly improved compared to traditional welded shelving, allowing for a rapid response to temporary storage needs.

[0030] For a preferred embodiment, please refer to Figure 1-2 :

[0031] The walls of compartment 1 consist of an inner layer, a middle layer, and an outer layer from the inside out, with the middle layer located between the inner and outer layers. The walls of compartment 1 employ a three-layer structure: the inner layer is made of stainless steel plate (1.2mm thick, polished surface, with a 0.5mm thick aluminum foil reflective film (reflectivity ≥95%) bonded to reflect indoor cold radiation); the middle layer is made of 120mm thick high-density polyurethane insulation board (density ≥40kg / m³). 3 The core insulation layer has a thermal conductivity coefficient of ≤0.018W / (m·K); the outer layer is made of 0.8mm thick color steel plate (with anti-corrosion coating sprayed on the surface) to protect the insulation layer.

[0032] The walls of compartment 1 adopt a "three-layer composite structure," forming a gradient insulation barrier from the inside out. The three layers work together to reduce heat exchange in compartment 1, lower the rate of cold loss, and improve the stability of the indoor temperature. This ensures the quality of stored materials (such as preventing food from softening and biological samples from losing their activity) without increasing the load on the refrigeration system. The inner stainless steel plate reduces frost formation and the frequency of cleaning. The outer color steel plate is corrosion-resistant and impact-resistant, extending the service life of the walls in low-temperature and high-humidity environments. The polyurethane insulation board is non-toxic and environmentally friendly, meeting the safety standards for food and pharmaceutical storage and preventing the release of harmful pollutants from the insulation material.

[0033] For a preferred embodiment, please refer to Figure 2-3 :

[0034] The upper and lower sides of the fixed base 3 are provided with reinforcing blocks 6, which are triangular in shape, thereby improving the support capacity of the fixed base 3 for the support plate 4.

[0035] The triangular reinforcing blocks 6 on the upper and lower sides of the fixed base 3 (welded integrally with the fixed base 3 or bolted to it) utilize the mechanical properties of triangles—strong stability and pressure dispersion—to evenly distribute the weight of materials transmitted by the support plate 4 to the connection point between the fixed base 3 and the wall of the storage compartment 1. This prevents the fixed base 3 from cracking or deforming at the weld due to excessive local stress. It also prevents the support plate 4 from bending and deforming under load, preventing materials from tipping over, while protecting the connection structure between the fixed base 3 and the wall of the storage compartment 1, extending the overall service life of the shelving. The reinforcing blocks 6 only increase the material cost slightly (such as stainless steel plates), but significantly improve structural performance, offering high cost-effectiveness and suitability for long-term, high-frequency use scenarios.

[0036] For a preferred embodiment, please refer to Figure 2-3 :

[0037] A baffle 9 is provided on the side of the support plate 4 away from the fixed base 3. The baffle 9 is transparent to prevent objects placed on the support plate 4 from falling easily. The lower end of the baffle 9 is rotatably connected to the lower outer end of the support plate 4. The baffle 9 has a positioning hole 10, and the outer end face of the support plate 4 has a threaded hole 11 corresponding to the positioning hole 10. When the baffle 9 is rotated to fit against the outer end face of the support plate 4, the positioning hole 10 and the threaded hole 11 are aligned and fixed with screws, so that the baffle 9 can be flipped to facilitate the storage and retrieval of items.

[0038] The baffle 9 is rotatably connected to the lower outer side of the support plate 4 via its lower end. Under normal conditions, it stands upright to prevent materials (such as small packaged food or reagent bottles) on the support plate 4 from falling when other materials are picked up or when the container is slightly vibrated. The transparent design of the baffle 9 (such as low-temperature resistant PC material) makes it easy for staff to observe the material labels on the inside of the baffle 9 and confirm the material information without disassembly. When storing or retrieving materials, unscrew the fixing screws of the positioning hole 10 of the baffle 9 and the threaded hole 11 of the support plate 4, and flip the baffle 9 outward (it can be flipped to a position perpendicular to the support plate 4) to prevent the baffle 9 from obstructing the insertion or removal of materials. After storage or retrieval, flip the baffle 9 in the opposite direction and screw it back in to fix it, restoring the anti-fall function.

[0039] In summary, it effectively prevents small, lightweight items from falling, avoiding damage or contamination, and is especially suitable for fragile items such as glass-bottled reagents and precision biological samples; the baffle 9 is made of low-temperature resistant PC material (can be used normally from -40℃ to 80℃), and does not become brittle or crack in the low-temperature environment of the freezer, ensuring long-term stable use.

[0040] In addition to the stainless steel base plate, the bottom of compartment 1 is equipped with an 80mm thick XPS extruded polystyrene board (thermal conductivity coefficient ≤0.028W / (m·K)) and a moisture-proof membrane (thickness 0.2mm) to prevent heat from the ground from being conducted upwards and to prevent defrosting water from penetrating and damaging the insulation layer.

[0041] Among them, the hinges of the storage door 2 are made of nylon material (thermal conductivity coefficient ≤0.3W / (m·K)) instead of traditional metal hinges, reducing heat transfer between the door and the body; a silicone sealing sleeve is added to the hinge to prevent cold air from leaking out from the hinge gaps.

[0042] Please refer to Figure 1 The refrigeration in compartment 1 is provided by a commercial refrigeration unit. A 12-inch touchscreen display (1920×1080 resolution) is mounted on the outer wall of compartment 1, housing a built-in PLC controller (Siemens S7-1200). The refrigeration unit specifically includes:

[0043] An independent high-efficiency evaporator (evaporation area 1.5-2m²) is installed at the top of compartment 1. 2 / each unit, using an aluminum tube fin structure); the evaporator is connected via pipes to the inverter compressor and condenser at the top of compartment 1 (cooling capacity 5-8kW, frequency adjustment range 30-120Hz, cooling capacity matched according to the freezer volume, such as a 5kW compressor for a 2000L volume), forming a closed refrigerant circulation system. The thermostat (such as a digital thermostat) built into the refrigeration unit is linked to the humidity sensor on the inner wall of compartment 1. By detecting the indoor temperature, it automatically controls the start and stop of the compressor and the cooling capacity of the evaporator to maintain the indoor temperature stable within the target range (such as -18℃~-25℃). The cooling capacity of each evaporator is independently controlled by a PLC controller. The compressor compresses the low-temperature, low-pressure refrigerant (such as R404A) into a high-temperature, high-pressure gas and delivers it to the outdoor condenser. The condenser cools the refrigerant into a high-pressure liquid through air cooling or water cooling. The liquid is then throttled and depressurized by a throttling valve (capillary tube or electronic expansion valve) to become a low-temperature, low-pressure liquid. The low-temperature, low-pressure refrigerant enters the evaporator inside the freezer compartment, absorbs heat from the indoor air, and evaporates into gas, thus lowering the indoor temperature. The evaporated refrigerant gas returns to the compressor, completing the cycle and continuously providing cooling capacity to the freezer compartment.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A low-temperature freezing chamber, characterized in that, include: The main structure includes a storage compartment (1) and a storage door (2), with the storage door (2) installed on one side of the storage compartment (1); The shelving structure is set inside the warehouse (1). Multiple sets of shelving structures are set longitudinally at equal intervals on each set of inner walls of the warehouse (1). The shelving structure includes a fixed seat (3) and a support plate (4). The fixed seat (3) is welded to the inner wall of the warehouse (1). The support plate (4) is fixed to the fixed seat (3) by fixing screws. The support plate (4) is used to carry goods, so that the number of sets of support plates (4) can be selected according to actual needs.

2. The low-temperature freezing chamber according to claim 1, characterized in that: The walls of the compartment (1) consist of an inner layer, a middle layer and an outer layer from the inside out, with the middle layer located between the inner layer and the outer layer.

3. A low-temperature freezing chamber according to claim 1, characterized in that: The fixing base (3) has a slot (5) on one side for inserting the support plate (4). The fixing base (3) has a first fixing hole (7) and the support plate (4) has symmetrically opened second fixing holes (8). After the support plate (4) is inserted into the slot (5), the first fixing hole (7) and the second fixing hole (8) are aligned and fixed by fixing screws.

4. A low-temperature freezing chamber according to claim 1, characterized in that: The fixed base (3) is provided with reinforcing blocks (6) on both the upper and lower sides. The reinforcing blocks (6) are triangular in shape, thereby improving the support capacity of the fixed base (3) for the support plate (4).

5. A low-temperature freezing chamber according to claim 1, characterized in that: A baffle (9) is provided on the side of the support plate (4) away from the fixed seat (3). The baffle (9) is a transparent baffle (9) to prevent objects placed on the support plate (4) from falling easily.

6. A low-temperature freezing chamber according to claim 5, characterized in that: The lower end of the baffle (9) is rotatably connected to the lower side of the outer end of the support plate (4). The baffle (9) has a positioning hole (10), and the outer end face of the support plate (4) has a threaded hole (11) corresponding to the positioning hole (10). When the baffle (9) is rotated to fit the outer end face of the support plate (4), the positioning hole (10) and the threaded hole (11) are aligned and fixed by screws, so that the baffle (9) can be flipped to facilitate the storage and retrieval of items.

7. A low-temperature freezing chamber according to claim 1, characterized in that: The compartment (1) is refrigerated by a commercial refrigeration unit.

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